2-Mercaptobenzothiazole
2-Mercaptobenzothiazole (CAS: 149-30-4; C7H5NS2) is a versatile organic compound with a molecular weight of 167.25 g/mol. It exists as a pale yellow powder and is primarily recognised for its utility as a chemical intermediate. Its key applications are found in the synthesis of other complex molecules and as a component in rubber vulcanisation processes, contributing to enhanced material properties. This compound is supplied by TSS for research and industrial purposes.
- IUPAC
- 2-Benzothiazolethiol,MBT
- Synonyms
- 2-BenzothiazolethiolMBTCaptax

Chemical Synthesis Intermediate
2-Mercaptobenzothiazole serves as a crucial building block in organic synthesis. It is employed in the preparation of various heterocyclic compounds and other fine chemicals, enabling the development of new molecular structures for diverse applications.
Rubber Vulcanisation Accelerator
This compound acts as an effective accelerator in the vulcanisation of rubber. It helps to improve the rate and efficiency of the cross-linking process, leading to enhanced physical properties such as strength and elasticity in the final rubber product.
Corrosion Inhibitor
2-Mercaptobenzothiazole demonstrates properties that make it suitable for use as a corrosion inhibitor, particularly for copper and its alloys. It forms a protective layer on metal surfaces, helping to prevent degradation in various environments.
| Molecular weight | 167.25 |
|---|---|
| Empirical formula | C7H5NS2 |
| Assay | ≥90% (T) |
| Suitability | in accordance for UV test |
| Melting point | 177-181 °C(lit.) |


Hazard statements
- H317May cause an allergic skin reaction
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P501Dispose of contents and container per local regulations
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Flash point | 200 °C / 392 °F |
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xi,N |
| Risk statements (R) | 43-50/53 |
| Safety statements (S) | 24-37-60-61 |
| Cation traces | Ba: ≤5 mg/kgCa: ≤50 mg/kgCd: ≤5 mg/kgCo: ≤5 mg/kgCr: ≤5 mg/kgCu: ≤5 mg/kgFe: ≤20 mg/kgK: ≤50 mg/kgMg: ≤5 mg/kgMn: ≤5 mg/kgNa: ≤50 mg/kgNi: ≤5 mg/kgPb: ≤5 mg/kgZn: ≤5 mg/kg |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Analyte Suitability | peptidespolymersproteins |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 2-Mercaptobenzothiazole used for?
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2-Mercaptobenzothiazole (CAS: 149-30-4) is primarily used as a chemical synthesis intermediate and as an accelerator in rubber vulcanisation. It also finds application as a corrosion inhibitor.
What is the CAS number and chemical formula for 2-Mercaptobenzothiazole?
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The CAS number is 149-30-4 and the chemical formula is C7H5NS2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Mercaptobenzothiazole with an assay of ≥90% (T). TSS does not represent this product as USP, BP, EP or other pharmacopoeia grades unless explicitly stated.
How should 2-Mercaptobenzothiazole be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, faceshields, and gloves. Avoid breathing dust and ensure adequate ventilation. This compound is harmful if inhaled and may cause an allergic skin reaction, and is very toxic to aquatic life with long-lasting effects.
How is 2-Mercaptobenzothiazole packed and shipped?
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2-Mercaptobenzothiazole is packed according to industry standards to ensure safe transport. As a global supplier, TSS exports this chemical worldwide. Please contact us for specific shipping information for your region.
How can I request a quote or sample for 2-Mercaptobenzothiazole?
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To request a quote or a sample of 2-Mercaptobenzothiazole, please use the 'Request a Quote' or 'Request a Sample' buttons on our product page, or contact our sales team directly.
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